Synapse 1.89.0rc1 (2023-07-25)

Features

• Add Unix Socket support for HTTP Replication Listeners. Document and provide usage instructions for utilizing Unix sockets in Synapse. Contributed by Jason Little. (#15708, #15924)
• Allow + in Matrix IDs, per MSC4009. (#15911)
• Support room version 11 from MSC3820. (#15912)
• Allow configuring the set of workers to proxy outbound federation traffic through via outbound_federation_restricted_to. (#15913, #15969)
• Implement MSC3814, dehydrated devices v2/shrivelled sessions and move MSC2697 behind a config flag. Contributed by Nico from Famedly, H-Shay and poljar. (#15929)

Bugfixes

• Fix a long-standing bug where remote invites weren't correctly pushed. (#15820)
• Fix background schema updates failing over a large upgrade gap. (#15887)
• Fix a bug introduced in 1.86.0 where Synapse starting with an empty experimental_features configuration setting. (#15925)
• Fixed deploy annotations in the provided Grafana dashboard config, so that it shows for any homeserver and not just matrix.org. Contributed by @wrjlewis. (#15957)
• Ensure a long state res does not starve CPU by occasionally yielding to the reactor. (#15960)
• Properly handle redactions of creation events. (#15973)
• Fix a bug where resyncing stale device lists could block responding to federation transactions, and thus delay receiving new data from the remote server. (#15975)

Improved Documentation

• Better clarify how to run a worker instance (pass both configs). (#15921)
• Improve the documentation for the login as a user admin API. (#15938)
• Fix broken Arch Linux package link. Contributed by @SnipeXandrej. (#15981)

Deprecations and Removals

• Remove support for calling the /register endpoint with an unspecced user property for application services. (#15928)

Internal Changes

• Mark get_user_in_directory private since it is only used in tests. Also remove the cache from it. (#15884)
• Document which Python version runs on a given Linux distribution so we can more easily clean up later. (#15909)
• Add details to warning in log when we fail to fetch an alias. (#15922)
• Remove unneeded __init__. (#15926)
• Fix bug with read/write lock implementation. This is currently unused so has no observable effects. (#15933, #15958)
• Unbreak the nix development environment by pinning the Rust version to 1.70.0. (#15940)
• Update presence metrics to differentiate remote vs local users. (#15952)
• Stop reading from column user_id of table profiles. (#15955)
• Build packages for Debian Trixie. (#15961)
• Reduce the amount of state we pull out. (#15968)
• Speed up updating state in large rooms. (#15971)

Updates to locked dependencies

• Bump anyhow from 1.0.71 to 1.0.72. (#15949)
• Bump click from 8.1.3 to 8.1.6. (#15984)
• Bump cryptography from 41.0.1 to 41.0.2. (#15943)
• Bump jsonschema from 4.17.3 to 4.18.3. (#15948)
• Bump pillow from 9.4.0 to 10.0.0. (#15986)
• Bump prometheus-client from 0.17.0 to 0.17.1. (#15945)
• Bump pydantic from 1.10.10 to 1.10.11. (#15946)
• Bump pygithub from 1.58.2 to 1.59.0. (#15834)
• Bump pyo3-log from 0.8.2 to 0.8.3. (#15951)
• Bump sentry-sdk from 1.26.0 to 1.28.1. (#15985)
• Bump serde_json from 1.0.100 to 1.0.103. (#15950)
• Bump types-pillow from 9.5.0.4 to 10.0.0.1. (#15932)
• Bump types-requests from 2.31.0.1 to 2.31.0.2. (#15983)
• Bump typing-extensions from 4.5.0 to 4.7.1. (#15947)